# -*-coding:utf-8 -*-
height = 1.75
weight = 55.5
bmi = weight/(height*height)
if bmi<18.5:
    print("过轻")
elif bmi<25:
    print("正常")
elif bmi<28:
    print("过重")
elif bmi<32:
    print("肥胖")
else:
    print("严重肥胖")
